Hydrocarbon motor



L. M. WUOLSUN.

HYDROCARBON MOTOR.

m'r-ucmlon FILED m1], I520.

1 ,4 1 5,080. Patented M y 9, 1922.

mentor; IwmeJ/JQ lbbolaon;

UNITED STATES PATENT OFFICE.

LI0NEL.M0 WOOLSON, OF DETROIT, MICHIGAN, ASSIGNOR TO PACKARD MOTOR CARCOMPANY, OF DETROIT, MICHIGAN, A. CORPORATION OF MICHIGAN.

HYDROCABIBON MOTOR.

Specification of Letters Patent.

Patented May 9, 1922.

Application filed February 7. 19ml Serial No. 357,083.

To all whom it'mag concern:

Be it known that'I, L onel. M. WVoonsoN, a citizen of the United States.and'resident of Detroit, W'ayne county. State of Michiin, haveinventedcertain new and useful which the following is a specification.

This invention relates to hydrocarbon motors andmore particularly tostarting mechanism therefor.

One type of starter for hydrocarbon motors now in common use utilizes anelectric motor as a source of power anddriving connections are' providedbetween the electric motor and the hydrocarbon motor for turningover'thefiy wheel and starting the hydro'carbon motor. In order to'startthe hydrocarbon motor in this manner it is desirable to provide means inthe drivin connections between the two motors for building up the torquein the electric motor before connecting the driving member and the motorto be drive'n therefrom. One method of accomplishing this endutilizesfrictionally engaging clutch members, tion being such that theseclutch members will be gradually forced into more intimate engagementwith each other until sufficient torque has been developed to start thehydrocarbon motor. whereupon the connections "will be completed and themotor started.

It has been found in devices of this character that under certainconditions, such for instance, as when the motor is cold andconsequently hard to start, or when the clutch faces become glazed oroil gains access to the clutch faces, the-.clutch slips and fails tooperate to start the hydrocarbon motor.

The object of the present invention, therefore. is to overcome thisdifficulty and to provide starting mechanism having an additional anpositive means for connecting the starting motor to the hydrocarbonmotor.

Another objectof the invention is to provide driving connectionslietn'ecn'thc stai'l ing motor and the hydrocarbon motor so constructedand arranged that a positive connection will be automatically madebetween the two motors after sufficient torque has been developed tostart the hydrocarbon motor.

Further objects of the invention will appear from the followingdescription taken in connection with the drawings in which I rovementsin Hydrocarbon Motors, of

the connechave shown an elevational view partly in section illustratingthe improved driving connections between the starting motor and the flywheel of thehydrocarbon motor.

The specific details .of construction of the starting motor have notbeen illustrated, since, per so, they form no partof the presentinvention, but this motor is represented in a general way by a casing10. and an armature shaft 11 extending outwardly from the casing andhaving formed thereon or secured thereto. a pinion 12 which meshes witha pinion 13 secured to or formed integral with a clutch member 14, thelatter being rotatably supported oi1 a shaft 15. Shaft 15 is journaledat one end in a bearing 15and at its other end in a bearing 25,hereinafter more fully described. The clutch member 14 is rotatable uponand slidable relatively to the shaft 15 and is frictionally connected tothecclutch member 16 through the medium of a friction washer .17 formedof cork, leather, or other suitable material. The clutch member 16 isprovided on its inner periphery with a fiat surface which enages a figltsurface 18 formed on the shaft 15 thereby positively, but slidablyconnecting the member 16 with the shaft 15 .Means is provided fornormally forcing the clutch members 14 and 16 to the left, this meanscomprising a relatively stifi coil spring 19 which is seated in therecess 20 formed in the clutch member 14 and at its opposite end'en agesa flanged collar 21 which is positively secured to the shaft 15 as by a.pin 21', or the member 2]. ma be integral with the shaft if desired.This movement of the members 14 and 16 toward the left is limited bypins 15" carried by the shaft 15 and which are adapted to be engaged bya collar 16' slidably carried by the shaft 15. The shaft 15 is extendedin the form of a Worm or screw thread uponwhich is loosely threaded apinion 23, the end of the extension 22 being cylindrical as shown at 24and slidably engaging a journal 25 formed in the casting 26 whichsupports the driving connections just described. A spring 27 engages aflanged collar 28 which rests against a shoulder 29 formed at the end ofthe worm 22 of the shaft 15 and this flanged collar with the springforms an abutment for the pinion 23 above referred to. It will beevident also that the spring .37 normally maintains the shaft 15 in thepositill tion shownpin the-drawings and that this spring permits;longitudinal moveinerit! of the shaft toward the left in case the pinion23 fails to properly mesh with a gear 30v formed on or secured to thefly wheel 31 of.

the hydrocarbon motor A. sleeve 34 is slidably mounted on the shaft 15and enga "'atN'one-eridthe collar 16' and the sleeve is adapted to beengaged by, thepinion 23,"thisf engag"ement causing the, sleeve 34,collar 16- and" clutch :me'mbrs 16 "and 14 tdflie1lm6'ted' toward theright against the te nsioriof th's ring 19;' Chain nelfs 34 are provided-in-t esle've'f'and 're-. ceiir'e the pins 15 means 'of which thesleevelis gi i ded'in Qitssliding" movement.

The driving eo'nnection'just described 0 erates intliejfolloiqvingmanner: -W'hen t e starting motor energized the 'arm'ature shaft 11 andpinion".1'2 al ei 'otatem't-hereby riitatingjtlie'pinibii T3," olut chfnembers 14 a d as, slid 85831215 aiitl its extension 22. Because ofthetiiati'i-dtational"speed of the shaft, fthei relativelvf lobs threaded'co'nnec tion'be'twe'en the piilion 23 and the threaded eittensioiij22and o f the fifiertia: "of the 'pifF ion 23, the rotat'i'on causes amovement of the pinioii'i 23 longitudinally on the extein sion 22 'and,asfthie pinion moves in' this manne itengage's'the sleeve 34. T beconltinued' moyement of .the "pinion after thus engaging the sleevea tcauses a joint more ment of the clutch members 16 and 14, forcing thesemembers againstthe tension 'ofthe spring l9 into' more intimateengagement with each other} and thereby graclually building up thetorque.

The ab o v,e .de'scription'is based on the'asisumpti on that thepinionteeth mesh propare provided the pinion 23 engaging the gear 30carried by the tlv heel after the pinion has traveled a sufficientdistance to build up the torque and to rausc intimate c'n gagemcntbetween the illliill members .4 and l6.

l'lUWPYCI. as above stated in thc spccilr cation. it sometimes happensthat the motor is cold. the faces of the clutch members hecome glazed orthat oil gains acces to the clutch faces and when one of these c0n-Inorder toovercomc this 'defect l have providedin addition to thefrictional or ielding driving connection between the clutchjmembers apositive drivin c connectionbetwediithe clutch member-l3 and theldriiien shaft 15.-

This additional positive driving connection comprisesclutch-teethfifiliformed on the clutch m'e'n berrM and' -correspoudingteeth 3ti"formed=on,.the'flanged rolled-e21. With this construct-ion itwill be evident that when sufficient torque has; beenbuiltnp, on thedriven-shaft-,?to start the hydrocarbon niotor the teeth '35 on theclutch membert l will engage-the depressions betweenithe ;teeth 36 onthe 1 collar- 21 and thereby positively connect the clutch member 14tqgjthe ydriven shaft-f :-'The;; driving; eonnection s iwill ithen tbe:made'thrpugh ,the pinion l2; gear 13;.c1ut'eh inemben-dl, gflanged.collar "-21, shaft 15, pink-11123 and.gearipd whereas in the previousconstruct-ions the 'dri ring. conneotionsx'were madethrongh thegpin ion12, gear 'li'l. clutch memben lt olutph member 1'6. shaft 15. pinion 23and gear 30.

- Fromtheabovedescription it vill be evident that means has beenprovided for positively' connecting the starting motor with themotorn'rtobe-started1 efter. suflicient torqne 'hasbeen built up on thedrivenshaft to turn over the flv wheel-and start the hydrocarbon motor.

f-Although. I have in the .above. specificationspecifically describedone form of dririn connections between the startingunotor and the motorto be started, it will be understoodi-that :changes and modificationsmay be'made'in thesevconnections without departing from the spirit orscope of the invention as expressed in thefollowing claims.

' What I claim anddesire to secure bv Let-i "ters Patent is:

"1. Starting mechanism comprising a drive shaft, a driven shaft. asourre of power connec ted to said drive shaft. connecting means betweensaid shafts adapted to build up the torque on the driven shaft. andmeans for positively connecting said shafts when the torque has beenbuilt up to a prcilelerminwl degree 2. Starting mechanism comprising: alrnc shaft. a driven shaft. :1 sour e of power con neCted to said driveshaft connecting means. including a friction clutch. bet een said shefts adapted to build up the torque on the driven shaft. and means forpositively runnertiny: sa d shafts when the torque has been built up toa prcdctorniined degr e.

3. Startin; n'icch'anism (lllllllllSlll'I a 'lri c shaft. a drivenshaft. a source of power wow nected to said drive shaft. means.lllt'llltllli: a plurality of hitch members held in engagement with eachother, for l' nildii'ig up l l i with each other, means for forcing saidmembers into engagement with each other against the tension of saidyielding means,-

and means for positively connecting said shafts when said clutch membershave been forced intoengagement with'each other to a sufficient extentto-buildup the torque on the driven shaft to a predetermined degree.

5. Starting mechanism. comprising a clutch member, a drive shaftoperatively connected thereto, a second clutch member adapted to beyieldingly engaged by said first clutch member. a driven shaft connectedto said second clutch member. and means dependent upon the torque builtup in the driven shaft for positively connecting said first clutchmember to said driven shaft.

6. Starting mechanism comprising a drive shaft, a clutch memberoperatively connected thereto, a second clutch member, means for forcingsaid clutch members into frictional engagement with each other. a drivenshaft connected to said second clutch member. and means for connectingsaid first clutch member to said driven shaft upon predetermined torquebeing built up through the. clutch members.

7. i tarting mechanism comprising a drive' shaft. a driven shaft, means.including clutch members, for connecting said shafts. a resilientabutment for said clutch members. means for moving said members intoengagement with each other against the tension of said resilientabutment, and

' means for positively connecting one of said clutch members to saiddriven shaft after predetermined torque has been built up.

S. Qtartim mechanism comprisin a drive shaft. a driven shaft. a clutchmember carried by said driven shaft and slid able thereon. a secondclutch member adapted to engage said first clutch member and slidable onbut splined to said driven draft. means for rotating said first namedclutch member. and means for positively connecting said first namedclutch member with said driven shaft upon predetermined torque beingbuilt up through the clutch members.

f1. Qtarting mechanism comprising a. drive shaft. a driven shaft.friction clutch members adapted to connect said drive shaft to saiddriven shaft, means carried by said driven shaft adapted to be connectedto a rotatable part of a hydrocarbon motor and movable longitudinally onsaid shaft,

-\vill bem'oved with said means.'and a member engageable with one ofsaid clutch members upon a predetermined movement thereof and connectedto said driven shaft.

10. Starting mechanism comprising in combination a drive shaft, a drivenshaft. a clutch member slidable and rotatable upon said driven shaft andoperatively connected to said drive shaft. a second clutch memberadapted to be engaged by said first named member and positivelyconnected to said driven shaft, resilient means for forcing said clutchmembers in one direction on said driven shaft. a third clutch memberpositively connected to said driven shaft and adapted to be engaged bysaid first named clutch member. and means for moving said second namedclutch member upon said driven shaft against the tension of saidresilient means to a position wherein said first and third named clutchmembers will positively engage each other.

11. Starting mechanism comprising a drive shaft, a driven shaft.friction clutch members carried by said driven shaft, one of saidmembers being driven from said drive shaft and the other member beingsplined to said driven shaft, said driven shaft being provided with ascrew threaded extension. a pinion carried by said screw threadedextension and adapted to move lm gitudinally of said extension into aposition to force said clutch members longitudinally of. said drivenshaft. and means connected to said driven shaft and adapted to beengaged by one of said clutch members upon predetermined movement ofsaid ilntch members by said pinion.

12. Starting mechanism comprising two friction clutch members. a shaftconnected to be turned by one of said clutch members, a source of poweronnected to positively d ive the o her of said clutch members. and me nfor onnecting said other clutch member pOSitl( l to said shaft when thetorque ha been built u to a predetermined degree.

3. Starting mechanism comprising two friction lutch members. a shaftconnected in be turned by ne of said clutch members, a motor ireed tothe other of said clutch members. and means for positively clutchinsrsaid other clutch member to saidshaft as the torque is built up to acertain degree.

14. The combination with a gear on a. hydrocarbon engine. and a startingmotor. of a starting shaft having a threaded portion. a pinion on saidthreaded portion and adapted to move thereon into and out of a positiveclutch, and means for operating both said clutches by the movement ofsaid pinion.

,15, The combinatiouwith a. gear on a. hydrocarbon engine, and astarting motor, of a starting shaft having a threaded portion. a pinionon said threagied portion and adapted to move thereoninto and out ofengagement with siuci I v clutch. a positive clutch, and means forincreasing the frictional engagement of the friction clutbh and forei'iga ging the positive clutch bythe movement of said pinion. 16, Thecombination with a gear on a ge:i r,' a friction the positive clutchuasthe engagement with said gear, a friction clutch, 'hydrbca'tbon engineand a starting mote;i

of a starting shaft having a. por tion. a pinion on said threadedportionan adapted to move thereon into and-out engagement withsaid gear,a friction clutch 20 connected to be operated by said motor and' adaptedto turn said shaft to move the pinion ]engthwise thereofl m positiveclutch, and means tending to-increase the pressure on thefrictiomclutch-and then to engage $6 pinion moves lengthwiseofgtheshaft; i In testimony whereof I eflix my signature.

' I LIONEL M. woonsoim

